Warmond is a village and former municipality in the western Netherlands, north of Leiden in the province of South Holland. The municipality covered an area of 14.42 km² of which 4.42 km² is water, and had a population of 4,977 in 2004. Together with Sassenheim and Voorhout, it became part of the Teylingen municipality on 1 January 2006. Warmond is located in an area called the "Dune and Bulb Region", and is notable for being extremely affluent.
Warmond is situated on a lake system called Kagerplassen and has several marinas which make it a popular recreational area for boating and other water sports.
An 18th-century mansion called "Huys te Warmond" is located north of the village along the main road.
The Groot Seminarie Warmond was founded here in 1799. Located in a converted in the former French Boarding School, it provided training for Priests until 1967. The only known surviving copy of Joos Lambrecht Dutch-French dictionary, the Naembouck, was discovered by Wytze Hellinga in the library here shortly after it was closed.
The first railway accident in the Netherlands occurred near Warmond on 10 March 1843. 1 person was killed.